81921308280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{307651}}^1$

素因数の和:307989

約数の個数: 128

約数和(自身を含む): 281760007680

約数和(自身を除く): 199838699400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 317, 420, 634, 840, 951, 1268, 1585, 1902, 2219, 2536, 3170, 3804, 4438, 4755, 6340, 6657, 7608, 8876, 9510, 11095, 12680, 13314, 17752, 19020, 22190, 26628, 33285, 38040, 44380, 53256, 66570, 88760, 133140, 266280, 307651, 615302, 922953, 1230604, 1538255, 1845906, 2153557, 2461208, 3076510, 3691812, 4307114, 4614765, 6153020, 6460671, 7383624, 8614228, 9229530, 10767785, 12306040, 12921342, 17228456, 18459060, 21535570, 25842684, 32303355, 36918120, 43071140, 51685368, 64606710, 86142280, 97525367, 129213420, 195050734, 258426840, 292576101, 390101468, 487626835, 585152202, 682677569, 780202936, 975253670, 1170304404, 1365355138, 1462880505, 1950507340, 2048032707, 2340608808, 2730710276, 2925761010, 3413387845, 3901014680, 4096065414, 5461420552, 5851522020, 6826775690, 8192130828, 10240163535, 11703044040, 13653551380, 16384261656, 20480327070, 27307102760, 40960654140, 81921308280]

約数ペア:

[(1, 81921308280), (2, 40960654140), (3, 27307102760), (4, 20480327070), (5, 16384261656), (6, 13653551380), (7, 11703044040), (8, 10240163535), (10, 8192130828), (12, 6826775690), (14, 5851522020), (15, 5461420552), (20, 4096065414), (21, 3901014680), (24, 3413387845), (28, 2925761010), (30, 2730710276), (35, 2340608808), (40, 2048032707), (42, 1950507340), (56, 1462880505), (60, 1365355138), (70, 1170304404), (84, 975253670), (105, 780202936), (120, 682677569), (140, 585152202), (168, 487626835), (210, 390101468), (280, 292576101), (317, 258426840), (420, 195050734), (634, 129213420), (840, 97525367), (951, 86142280), (1268, 64606710), (1585, 51685368), (1902, 43071140), (2219, 36918120), (2536, 32303355), (3170, 25842684), (3804, 21535570), (4438, 18459060), (4755, 17228456), (6340, 12921342), (6657, 12306040), (7608, 10767785), (8876, 9229530), (9510, 8614228), (11095, 7383624), (12680, 6460671), (13314, 6153020), (17752, 4614765), (19020, 4307114), (22190, 3691812), (26628, 3076510), (33285, 2461208), (38040, 2153557), (44380, 1845906), (53256, 1538255), (66570, 1230604), (88760, 922953), (133140, 615302), (266280, 307651)]